Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Lucas LRA02970

Alternator BMW E60 E61 E87 E90 E91 N52 Generator 155A Lucas is a used, tested component from the Alternators and generators category, designed for BMW vehicles with petrol engines. Thanks to its high current output, it ensures a stable power supply for the electrical system and proper battery charging under demanding operating conditions.

Specifications and technical data

• SKU: 7543083-2
• Mark: Unbranded
• Condition: Used
• OEM Part Number: 7543083
• Substitutable numbers: 12317543083, 7543083, 12317542529, 7542529, 12317551256, 7551256, 12317550967, 7550967, LRA02970, BG
• Fuel type: Petrol
• Category: Alternators & Generators

Purpose and operating parameters

The alternator has been designed to work with petrol engines, which guarantees that the charging characteristics are properly matched to the specifics of the BMW E60, E87, and E90 series petrol engines. The high current output of 155A allows for stable operation even with an extensive electrical system, including additional consumers such as multimedia systems, parking heaters, or advanced lighting.

This component belongs to the Alternators and generators group, meaning it is responsible for converting mechanical energy from the engine into electrical energy, which is necessary to power all vehicle systems and to charge the battery while driving.

Benefits of using the 155A alternator

Using a 155A output alternator in BMW cars provides:

• stable voltage in the electrical system under high load from consumers,
• safe and efficient battery charging in urban conditions and on long routes,
• power reserve for additional electrical and electronic equipment,
• increased resistance to temporary voltage drops during starting and idling.

Thanks to these features, the alternator is a functional service solution for users who expect reliable power for all vehicle systems without having to give up comfort features.

Condition, origin, and fitment

The offered alternator is a used part, which allows for an economical repair of the charging system while maintaining appropriate operating parameters. The product comes from the aftermarket and is labeled as Unbranded, making it an attractive cost alternative to expensive components signed with the vehicle manufacturer's logo.

To facilitate selection for a specific car configuration, the alternator has an assigned OEM part number and a set of interchangeable numbers, which allows for precise compatibility verification with a specific BMW model. Before purchasing, it is worth comparing the markings with the currently installed generator or the vehicle's service documentation.

Application in the vehicle's electrical system

The alternator plays a key role in the car's electrical system, and its proper operation affects:

• the efficiency of the starting system and battery life,
• the stability of engine control units and safety systems,
• uninterrupted operation of comfort equipment (air conditioning, audio, interior lighting),
• overall vehicle reliability in daily use.

Replacing a faulty alternator with a functional unit from a properly selected BMW model series allows you to restore correct charging parameters and reduce the risk of failures related to electrical energy shortages.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as alternators with different outputs, auxiliary generators, or mounting elements, check the available parts in the Unbranded Alternators and generators category.

New or used – how to choose the right alternator

When choosing an alternator for a BMW, it is worth considering both technical and budgetary aspects. Used parts, such as this model, allow for a significant reduction in repair costs while maintaining appropriate functionality, provided they are correctly selected and installed. If you want to better understand the differences between new and used parts, their durability, and cost-effectiveness, the following article will be helpful: Car parts – new or used? We compare costs, quality, and durability.